Repeating mechanism for rolling-mills.



W. F. CONKLIN.

REPEATING MECHANISM FOR ROLLING MILLS.

APPLICATION FILED JUNE 29, |915. 1,184,519. Patented May 23,1916.

2 SHEETS-SHEET I.

INVENTOR wL F.' coNKLIN.

REPEATING MECHANISIVI FOR ROLLING MILLS.

APPLICATION FILED JUNE 29,1915. 191849519 Patented May 23, 1916.

2 SHEETS-SHEET 2- wrrNsssEs IN THE coLUMuxA PLANOURAPH co., WASHINGTON.D, C.

srarnsl Parana onreine.

WILLIAM FRANCIS CONICDIN, OF TARENTUM, PENNSYLVANIA, ASSIGNOR T0v WESTPENN STEEL COMPANY, OF BRACKENRIDGE, PENNSYLVANIA, A CORPORATION OF NEWJERSEY.

REPEATING MEOHANISM FOR ROLLING-MILLS.

Application filed .T une 29, 1915.

To all whom t may concern:

Be it known that I, WILLIAM F. CONKLIN, a citizen of the United States,residing at Tarentum, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inRepeating Mechanism for Rolling-Mills, of which the following is aspecification.

My invention relates to rolling mills for plate or sheet metal.

It has for its object to provide a repeater which may be easily mountedon the ordinary housing of a two high mill for returning the sheets infront of the rolls, for rerolling, or so adjusted out of operativeposition, as to permit the sheets to pass directly through in theordinary way.

The invention comprises an arc-shaped guide frame having bearingrollers, pivotally mounted upon a supporting hanger frame for adjustablelocation with relation to the rolls and provided with an adjustingoperating lever, as shall be more fully hereinafter described. j

Preferred forms of the invention are shown in the accompanying drawings,in which- Figure 1 is a partial plan view illustrating one of thesupporting hangers and the operating lever. Fig. 2 is a sectionalelevation showing the device mounted between the housings in operativerelation to the rolls. Fig. 3 is a view similar to Fig. 2 illustrating aconstruction utilizing an inner series of additional guide rollers. Fig.4 is a view of the adjustable guiding mechanism and its parts, detached.Fig. 5 is an enlarged cross section, on the lineV. V. of Fig. 2. Fig.l 6is a similar section on the line VI. VI. of Fig. 3. Y

In the drawings, 2, 2, are the rolls mounted in the usual way betweenthe ordinary housings 3 of the mill, and having transverse tie rods orbraces 4, 4.

Ordinarily, the plates or sheets are passed through between the rolls 2on the line @,a, from front to back, and are received on a table orother support beyond the roll train, from which they are ordinarilyreturned to the front of the rolls for re-rolling, by hand. For thepurpose of automatically returning the plates or sheets, after passingthrough `the rolls, I provide an arc-shaped frame composed of two curvedside plates 5, 5, connected by suitable bolts 6 with mterven-Specification of Letters Patent.

Patented May 23, 1916.

Serial No. 36,960.

ling braces, and having series of staggered housings. The hanger 11bears by its ends on said rods, and is provided with caps 12 andsecuring bolts 13, by which secure attachment may be made, with ampleprovision for adjustment to variations in the rods 4, or for adjustmentthereon with relation to the rolls. Hangers 10, there being one at eachside for each pair of plates 5, 5, are provided with suspending eyes 14,14, for attachment to a crane or the like.

For the purpose of providing pivotal adjustment for the arc-shaped frame5, 5,) its supporting extensions 9 are pivotally hung upon studextensions 15 having terminal bolt ends 16 (squared or slotted for awrench or screw driver), and extending eccentrically of a cylindricalbarrel 17 mounted in bearing 10. A set screw 18 fixedly4 holds saidbarrel in position, so that it may be turned to the desired degree andthere held. By this means the arc-shaped guide roller frames may beaccurately adjusted with relation to the rolls.

Beyond the pivotal mounting of the roller carrying frames, they areprovided with extensions or lugs 19, secured in any suitable manner andadapted to receive and support at"g one or both end portions of theentire tilting structure, 4an actuating rod or bar 20. kSaid bar extendsacross the ends of all of the plates 5, is preferably squared orsplined, and is ixedly secured in the several lugs 19, so thatwhenfpower is imparted to the bar, it will rock the entire frameupwardly or downwardly as to the series of rollers 7 on the pivotingsupports 15. For the purpose of thus actuating the frame, bar 20 isprovided at one end with an operating lever 217 Awhich has a limitedrange of lateral moveviding a handle by its terminal, and is operableverticallyv along the inner face of a guiding and limiting frame member24, which may conveniently be of angle form, bolted to the inner edge ofthe housing, as clearly shown.

Extending inwardly of frame 24 are limiting pins or abutments 25, 25, atthe upper end and 26 at the lower end. By this means the entire framemay be tilted upwardly out of the range of the blank, as indicated indotted lines in Fig. 2, and there held by pin 26, or may be lowered tooperative position, and lever 21 ixedly held between the adjacent studs25.

For the purpose of insuring engagement with the studs or pins 25, 26,after the rais-- ing or lowering operation, and of positively thrustingthe lever toward the inner face of frame 24, I provide a spring 27surrounding bar 20, bearing by its inner end against a collar 28 on theshaft, and by its outer end against a sliding collar 29. Said collar 29,being non-rotatably mounted on bar 20, as by a squared or splinedopening, is chamfered oil at its inner portion, providing clearance 30,whereby its outer portion will always bear with a defined leverageagainst the hub of lever 21, whereby to thrust it outwardly toward theface of frame 24, thus insuring engagement with the pin or pins.

The lower ends of roller carrying frames 5, 5, are provided withterminal blocks 31, adapted to provide an initial bearing surface forthe edge of the plate and to deflect it upwardly around the upper rolland against the series o1' rolls 7. Said bearing terminal 31 isadjustably mounted between the side plates 5 by means of bolts 32 havingslotted engagement with the plates, whereby to compensate for wear andrelocate the block, as desired.

'The construction and operation of the mechanism as illustrated in Figs.1 and 2 will be readily understood and appreciated from the foregoingdescription.

In Figs. 3 and 4, the same general arrangement of parts is shown, andidentified by corresponding numerals having the exponent a. Thesefigures also show the use of a series of supplemental inner guiderollers 33, so arranged with relation to the rollers 7 a as to providebetween them an arc-shaped path for the passage of the blank. Thisarrangement is desirable at times in the case of rolling very thinsheets, or where there isliability to buckle or unduly curve toward theupper roll 2a, and whereby to positively provide a limiting open pathwayfor the blank, in returning it vto the front of the4 rolls. In such caserollers 33 are mounted on carrying studs 34 mounted in an arcshapedframe 35 connected with the main frames 5, by arms 36 extendingoutwardly and backwardly and secured by the cross shafts 6a of thegeneral framework construction, as clearly shown in Fig. 6. By thismeans the inner series of rollers 33 are fixedly held with relation tothe outer rollers 7, and the entire structure may be actuated in themanner already described. I preferably provide, at the end of'frames 35,terminal bearing blocks 37, which may engage against the face Of theupper roll, whereby to positively deflect the blank into the arc-shapedguiding passageway. The construction and operation otherwise is`substantially the same as in the simpler form above described, andcapable of the same range of movement and adjustment.

The advantages of the invention reside in its Vfacility for returning'light plates or sheets of metal automatically for 1re-rolling. Theconstruction is such as to adapt it to mounting between the housings ofan ordinary roll train, without any specially designed supportingmechanism, and enabling the easy 'application and removal of the device,and its utilization Vwith various standard constructions of millpractice,due to its construction and manner of mounting. This is ofespecial advantage in connection with the usual and necessarily frequentland rapid change of rolls of the mill, the entire structure beingreadily lifted away, merely by removal of the caps 12 and adjustment oflever or levers 21, utilizing a crane and the,

supporting eyes 14.

The accurate and rapid adjustment provided for by the eccentric mountingof the pivoted roller frames enablesthe operator to adjust the mechanismto the diferent conditions of use. The spring actuated operating leverinsures positive holding ofV the frame in raised or lowered position andagainst accidental displacement. Y

The advantages of the invention will be readily appreciated by all thosefamiliar with the rolling of sheet metal; it may be changed'or varied inconstruction or adaptation to various conditions of luse by the skilledmechanic; and I do not desire to be limited to the specific constructionand arrangement shown, except as required by the appended claims.

What I claim is: y

1. Repeater mechanism for reducing rolls, comprising a rigid arc-shapedframe adapted to be pivotally supported above the rolls and providedwith a series of gui-ding rollers.

2. Repeater mechanism for reducing rolls, comprising a rigid arc-shapedframe adapted to be pivotally supported above the rolls and providedwith a series of guiding rollers, and an operating lever for locatingthe frame in varying positions.

3. vRepeater' mechanism for reducing rolls, comprising a rigidarc-shaped frame adapted t0 be pivotally supported above theV rolls andprovided with a series of guiding rollers,

an operating lever for locating the frame in varying positions, andmeans for fiXedly holding the mechanism in adjusted position.

4. Repeater mechanism for reducing rolls, comprising a rigid arc-shapedframe adapted to be pivotally supported above the rolls and providedwith a series of guiding rollers, and means for varying the position ofthe pivotal support.

5. Repeater mechanism for a rolling mill comprising an arc-shaped framehaving a series of guiding rollers, an operating lever, and supportingmechanism therefor embodying eccentrically adjustable pivoting devices.

6. Repeater mechanism for a rolling mil] comprising an arc-shaped framehaving a series of guiding rollers, an operating lever, supportingmechanism therefor embodying eccentrically adjustable pivoting devices,and means for iXedly holding said eccentric. mechanism in varyingpositions.

7. Repeater mechanism for a rolling mill comprising an arc-shaped framehaving a series of guiding rollers, an operating lever, supportingmechanism therefor embodying eccentrically adjustable pivoting devices,and a superimposed supporting yoke having means for attachment toelements of a mill.

8. In combination, a supporting yoke having removable caps and anintervening bearing portion, adjustable eccentrically mounted pivotingmechanism, an arc-shaped frame pivotally mounted thereon provided with aseries of guiding rollers, and means for tilting and fXedly holding saidframe in position.

9. In combination with rolls and housings therefor, and elementsconnecting the housings; a removable supporting frame mounted on saidelements provided with an intervening bearing portion, adjustableeccentric mechanism therein having pivoting studs, and an arc-shapedframe pivotally mounted thereon provided with a series of guiding rollsand an operating lever.

10. In combination with rolls and housings therefor, and elementsconnecting the housings; a removable supporting frame mounted on saidelements provided with an intervening bearing portion, adjustableeccentric mechanism therein having pivoting studs, and an arc-shapedframe pivotally mounted thereon provided with a series of guiding platesecured to the housing having limiting abutments adapted to engage saidlever.

12. The combination with the pivotally `mounted repeater frame having aseries of guiding rollers, of a laterally adjustable actuating leveradapted to swing said frame on its pivotal mounting, limiting abutmentsfor said lever, and spring mechanism adapted to thrust the leverlaterally into engagement therewith.

13. Repeater mechanism for reducing rolls, comprising a rigid arc-shapedframe adapted to be pivotally supported above the rolls and providedwith adjacent series of guiding rollers providing an arc-shaped guidingpassageway for the blank.

14. Repeater mechanism for reducing rolls, comprising a rigid arc-shapedframe adapted to be pivotally supported above the rolls and providedwith a plurality of series of guiding rollers and an interveningpassageway, and an operating lever for locating the frame in varyingpositions.

15. Repeater mechanism for reducing rolls, comprising a rigid arc-shapedframe adapted to be pivotally supported above the rolls and providedwith a series of guiding rollers, a similar frame connected to saidframe having a series of guiding rollers spaced away from said firstnamed rollers, an operating lever for locating the frame in varyingpositions, and means for ixedly holding the mechanism in adjustedposition.

16. Repeater mechanism for reducing rolls, comprising a rigid arc-shapedcompound frame adapted to be pivotally supported above the rolls andprovided with a plurality of adjacent spaced series of guiding rollers,and means for varying the position of the pivotal support.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

WILLIAM FRANCIS CONKLIN.

Witnesses J. B. KEEFE, H. K. TURNER.

copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of atents, Washington, D. C.

